Internals of PDFPenPro

  • Hi,

    I have seen an application named "PDFPenPro" which will edit PDFs.
    Can anybody give some light on this, how  this application stores
    data internally in .pdf.

    Actually i am planning to develop a new application, which will do
    the same functionality like PDFPenPro.

    Regards
    Apparao M.
  • On Oct 27, 2006, at 4:51 AM, apparao wrote:
    > I have seen an application named "PDFPenPro" which will edit PDFs.
    > Can anybody give some light on this, how  this application stores
    > data internally in .pdf.

    Knowing nothing of the inner workings of PDFPenPro, I can't help you
    there.  The PDF spec however lays out how the various pieces of a PDF
    fit together — it seems likely that PDFPenPro is simply following the
    PDF spec.

    A good place to start in Cocoa is to use PDF Kit.  In particular the
    Leopard version of PDF Kit which allows you to create and edit
    Annotations, Outlines, etc.  There is  enough sample code at ADC (and
    one more bit in the Developer/Examples/Quartz/PDFKit folder on Tiger).

    john calhoun— _______________________________________________
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